... Stating they couldn't prove it wasn't borrowed. Was the driver a relative or something? I've heard about cases where they don't notify the owner of an impounded car (or they eventually send a letter). I watched an episode of Law and Order SVU today ("Gone" where Stabler and Benson found an impounded car two murders used. They were never notified because someone transposed two license numbers from the plate in the computer. Stuff like that happens. A lot of places (including Minneapolis) have an online search function for the impound lot and it's kind of left up to the owner to check themselves.
I've been pulled over for a non-functional tail light (last year when I lived out east). I'm a white guy and was driving a fairly new Jaguar at the time. I was in a nice neighborhood by my house and it was a sheriffs car that pulled me over. The officer was polite (and I was very polite) and he told me to get it fixed. Another officer pulled me over about a week later for speeding (on the same road). I wasn't paying attention and was going about 15mph over the limit. Again I was very polite, put my hands on the wheel, lowered all the windows so he could see inside, and I was treated nicely. He let me go with a warning. Both officers asked me almost immediately if it was my car. I think my Disabled Veteran license plates got me off since he thanked me for my service.
I did find some articles online about Mpls PD not going to certain areas so your concerns about that are valid. Property crimes probably aren't going to be handled promptly (or else done by phone). One city I read about last year actually had an online form to fill out if you're a property crime victim (they wouldn't go out for that).
https://minnesota.cbslocal.com/2021/05/02/even-when-residents-call-for-their-help-minneapolis-police-wont-go-near-38th-chicago/
https://minnesotareformer.com/2020/09/15/data-show-a-slower-less-proactive-minneapolis-police-department-since-george-floyd-killing/
I do hope things get better in Minneapolis. It was once a great city and I believe it can be again.